I have been using Vonage for about 7 month my problem has been alwayes is dropping calls and when I make a call to some body they can hear me but I can not her them at all so I have to hung up and call again then we can talk fine and some time is the vise versa where some calls me then I answer they can hear me but I cannot hear them I have tried every think from replacing my ISP Modem to add more Bandwidth we have done all of the testing with Vonage tech Level 2 support but no where to go.. We agree it is not my ISP he was happy with my ISP ..I have Cox cable .. with Linksys RT31P2 that I got from Vonage and my cable modem is webstar so please did any have or had the same problem and how they fixed it